针对不锈钢冷连轧生产工艺,提出动态变形抗力概念,利用四辊可逆冷轧机和Inston高速拉伸实验机进行轧制-拉伸实验,在MMS-200热模拟实验机上测定不锈钢的应力-应变曲线,建立不锈钢动态变形抗力模型.在Hill方程的基础上建立了轧制力显函数模型,并通过变形抗力和摩擦因数的逆向回归计算实现模型的在线自学习.提出了适合轧制力模型的可信度评估方法,引入Theil不等式系数法,依据TIC值定性分析了模型的适用性.最终确立了适合于冷连轧生产的精确的轧制力显函数模型,并将其应用到生产实践中.统计结果表明:冷连轧过程中轧制力的模型计算值与实测值的相对误差小于3.67％,该模型具有良好的计算精度和较好的泛化能力,适合于工业生产实践.
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